Chain driving gear for locomotives



(NO Model.)

G. P; SIEVERN.

CHAIN DRIVING GEAR FOR LOCOMOTIVES, STEAMBOATS, &c.

Patented June 26, 1883.

INVENTOR- 0%; BY W? WITNESSES W, M; flaw/a24- 'ufmw N. FETUS.Phowlimognphnr. Wznhlngton. D. C.

UNITED STATES PATENT OFFICE.

GUSTAV F. SIEVERN, OF PITTSBURG, PENNSYLVANIA.

CHAIN DRIIVING GEAR FOR LOCOMOTIVES, STEAMBOATS, 800.

SPECIFICATION forming part of Letters Patent No. 280,091, dated June 26,1883.

Application filed May 2,1883. (No model.)

1'0 all whom it may concern:

pulleys intermediate to the driving-pulley, to

which the power is applied, and the pulley's on the axles by which thepower is transmitted, said driving, carrying, and transmitting pulleysbeing arranged to facilitate the application of two chain belts from onedouble-faced driving-pulley to both axles of a truck, so as to insurethe positive and certain connection of the chains with the pulleys thatis necessary for transmitting power for such purposes, the arrangementof the said driving, carrying, and transmitting pulleys being in asimple housing-frame of parallel bars and posts or uprights mounted onthe axles and supporting the bed-frame of the truck or locomotive, allas hereinafter fully described.

Reference is to be had to the accompanying drawings, forming part ofthis specification, in which similar letters of reference indicatecorresponding parts in both the figures. I

Figure 1 is a longitudinal sectional elevation of a truck contrived withdriving-gear of my -invention, the section being taken on the line w wof Fig. 2, which is a plan view.

I provide the truck or locomotive axle a, of any form of machine orvehicle to which the power is applied, with a transmitting-pulley, b,which is connected to the axle between two uprights, c, of a pair ofhousing-frames, of

V which said uprights 0 form the verticals; and

(2 represents the horizontal bars between which all the driving-gear ismounted,and in which the axles of all the pulleys, except pulleys b,have bearings, these being supported by'the truck-axles, for which thetruck-wheels a serve for bearings, and, on which axles the housingframes have their bearings.

The driving-pulley e is mounted in forwardly-proj ecting extensions d ofthe housingframes. which have brackets f suspended by hangers h from thefront ends, for the connection of an extension of the bed-frame g, whichis mounted on similar brackets, i, of the uprights 0. Between theuprights c, I have arranged'a couple of guiding or carrying pulleys, jk, for the chains, and above the axles,

and also above the plane of the driving-pulley e and pulleys j k, I havearranged two other but smaller carrying-pulleys, lm, in the extensionsof the uprights a above the horizontal bars. I

All the pulleys are doublethat is to say, they have two chain-groovesside by side for the use of two endless driving-chains, w and y,whichare arranged upon the pulleys as represented, but may be arrangedin any approved way. The pulleys may have spurs for engaging the linksof the chains to insure positive action; but they may be smooth on theface, if preferred.

It is believed that this. improved arrangement of I driving-gear will bepreferable to other forms in respect of the percentage of useful effectobtained from the engine; also, in thefacility it affords of multiplyingthe speed above the speed, of the engine, and also in the economy'ofpower by the diminution of the friction of .the driving parts.

I also propose to utilize this improved 1notive-power apparatus fordriving steamboat paddle-wheels and screw-propellers, to which it may beapplied in various ways.

The housing-frames c d are to be connected together by suitable stayrods or bars, 0,whe11- ever needed.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. The driving-pulley.e, carrier-pulleys j k and Z m, thetransmitting-pulleys b, and chains as y, in combination with the axles aof a truck or other vehicle or machine, substantially as described.

2. A motive power apparatus consisting, essentially, of thedrivingpulley e, carryingpulleys j lm, and transmitting-pulleys Z2, andchains 00 y, the said pulleys and chains arranged in the housing-framec, d, and d, and said frames arranged on the axles a, substantially asdescribed.

3. A motive power apparatus consisting of driving-pulley e,carrying-pulleys j k and ha, and the transmitting-pulleys b, and chainsas the said pulleys'having double faces-that is to say, separate groovesfor each chain and the chains arranged thereon as traced by the letters00 y-substantially as described.

Witnesses: GUSTAV F. SIEVERN.

P. Monrnvnnnn, R. W. MOLAUGHLIN.

